設置的時間間隔有一個通知聲音每次命中零時熄滅。
計時器會自動重新啟動在指定的時間間隔，不同於Android的股票計時器。
暫停按鈕是偉大的拉伸一樣，你不需要啟動向後上方活動。
這是偉大的其他活動，以及如間歇訓練，甚至做飯！
Last updated on 2018年07月26日
v6
Pause button works again! :)
v5
General changes:
- Updated to Android 8.1.
- Added labels to edit area and timer.
- App remembers last interval used.
Orientation fixes:
- Sound can be stopped after orientation has flipped.
- Interval cannot be changed while timer is counting.
- Still looking at getting timer text to update.
v4
Disable interval and reset button when paused to prevent bugs.
v3
Fixed the sound on some devices due to Ringtone class failure. Now using MediaPlayer.
